Gastrointestinal disease and eye disease are common co-morbid conditions; yet, both gastroenterology and ophthalmology seem to have forgotten the connection between the stomach and eye. Gastroenterology knew fifty years ago that intestinal pathogens had extra-intestinal effects in the body, including in the eye. Today, neither gastroenterology nor ophthalmology seems to recognize nor acknowledge the common root causes of stomach diseases and eye diseases.